{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{longtable}{l*{8}{c}}
\caption{Robust: Regressions Controlling for Inverse of 1930 Population.\label{tab:invpop}}\\
\hline\hline\endfirsthead\hline\endhead\hline\endfoot\endlastfoot
                &\multicolumn{4}{c}{OLS}                                                    &\multicolumn{4}{c}{2SLS}                                                   \\\cmidrule(lr){2-5}\cmidrule(lr){6-9}
                &\multicolumn{1}{c}{(1)}         &\multicolumn{1}{c}{(2)}         &\multicolumn{1}{c}{(3)}         &\multicolumn{1}{c}{(4)}         &\multicolumn{1}{c}{(5)}         &\multicolumn{1}{c}{(6)}         &\multicolumn{1}{c}{(7)}         &\multicolumn{1}{c}{(8)}         \\
                &War bonds         &Volunteers         &   Medals         &      PCA         &War bonds         &Volunteers         &   Medals         &      PCA         \\
\hline
Agricultural support&    0.163\sym{***}&    0.035\sym{***}&    0.013\sym{***}&    0.230\sym{***}&    0.366\sym{***}&    0.185\sym{***}&    0.048\sym{***}&    0.823\sym{***}\\
                &  [0.014]         &  [0.007]         &  [0.004]         &  [0.026]         &  [0.057]         &  [0.054]         &  [0.012]         &  [0.141]         \\
Inverse of 1930 population& -184.556         &  244.341\sym{*}  &  120.991         &  631.454         & -262.770         &   93.159         &   84.708         &   30.868         \\
                &[183.613]         &[126.570]         &[133.713]         &[684.666]         &[220.491]         &[148.960]         &[157.768]         &[768.685]         \\
WWI volunteering rate&   -0.005         &    0.112\sym{***}&    0.057\sym{***}&    0.455\sym{***}&    0.000         &    0.106\sym{***}&    0.056\sym{***}&    0.433\sym{***}\\
                &  [0.036]         &  [0.026]         &  [0.021]         &  [0.118]         &  [0.044]         &  [0.036]         &  [0.021]         &  [0.144]         \\
WWI awards per capita&    0.222\sym{***}&    0.134         &    0.039         &    0.592\sym{**} &    0.183\sym{**} &    0.103         &    0.031         &    0.469\sym{*}  \\
                &  [0.083]         &  [0.102]         &  [0.033]         &  [0.270]         &  [0.086]         &  [0.094]         &  [0.038]         &  [0.276]         \\
log 1930 population&   -0.035         &    0.005         &   -0.009         &   -0.103\sym{**} &   -0.002         &    0.027         &   -0.003         &   -0.014         \\
                &  [0.025]         &  [0.011]         &  [0.009]         &  [0.049]         &  [0.032]         &  [0.018]         &  [0.009]         &  [0.063]         \\
1930 unemployment rate&   -0.391         &    0.616\sym{***}&    0.156         &    1.622\sym{*}  &   -0.114         &    0.742\sym{***}&    0.186         &    2.124\sym{*}  \\
                &  [0.260]         &  [0.203]         &  [0.155]         &  [0.888]         &  [0.323]         &  [0.285]         &  [0.161]         &  [1.129]         \\
Urban status: 1930&    0.030         &    0.013         &    0.009         &    0.133\sym{***}&   -0.004         &   -0.018         &    0.001         &    0.008         \\
                &  [0.026]         &  [0.013]         &  [0.007]         &  [0.046]         &  [0.030]         &  [0.018]         &  [0.009]         &  [0.068]         \\
1930 farm share &   -0.548\sym{***}&   -0.070         &    0.036         &   -0.392\sym{**} &   -0.667\sym{***}&   -0.132\sym{*}  &    0.021         &   -0.640\sym{**} \\
                &  [0.127]         &  [0.053]         &  [0.029]         &  [0.191]         &  [0.164]         &  [0.076]         &  [0.034]         &  [0.318]         \\
1929 farm income&    0.054\sym{***}&   -0.028\sym{**} &    0.013         &    0.062         &   -0.001         &   -0.077\sym{***}&    0.001         &   -0.131         \\
                &  [0.020]         &  [0.012]         &  [0.010]         &  [0.056]         &  [0.031]         &  [0.027]         &  [0.011]         &  [0.092]         \\
Mean Democratic vote share: 1898-1928&    0.002\sym{**} &   -0.000         &   -0.000         &    0.002         &   -0.000         &   -0.002\sym{**} &   -0.001         &   -0.006\sym{*}  \\
                &  [0.001]         &  [0.001]         &  [0.000]         &  [0.002]         &  [0.001]         &  [0.001]         &  [0.000]         &  [0.003]         \\
1930 share of men&   -1.155         &   -1.333\sym{***}&   -0.580\sym{**} &   -6.639\sym{***}&   -0.948         &   -1.289\sym{**} &   -0.569\sym{**} &   -6.468\sym{***}\\
                &  [0.769]         &  [0.503]         &  [0.266]         &  [1.537]         &  [0.973]         &  [0.607]         &  [0.238]         &  [1.851]         \\
1930 share of blacks&   -0.277\sym{***}&   -0.434\sym{***}&   -0.050\sym{**} &   -1.176\sym{***}&   -0.224\sym{*}  &   -0.388\sym{***}&   -0.039\sym{*}  &   -0.994\sym{***}\\
                &  [0.087]         &  [0.037]         &  [0.021]         &  [0.142]         &  [0.119]         &  [0.066]         &  [0.023]         &  [0.235]         \\
1930 share of Japaneses&    5.041\sym{**} &    0.850         &    0.941         &   11.385\sym{*}  &    4.195         &    0.894         &    0.952         &   11.559\sym{*}  \\
                &  [1.996]         &  [1.196]         &  [1.282]         &  [6.766]         &  [2.671]         &  [1.518]         &  [1.183]         &  [6.440]         \\
1930 share of Germans&    0.665\sym{***}&   -0.731\sym{***}&    0.046         &   -0.117         &    0.515\sym{**} &   -0.851\sym{***}&    0.017         &   -0.593         \\
                &  [0.179]         &  [0.148]         &  [0.116]         &  [0.645]         &  [0.245]         &  [0.184]         &  [0.122]         &  [0.746]         \\
1930 share of Italians&   -0.166         &   -0.309         &   -0.047         &   -0.690         &    0.070         &   -0.099         &    0.004         &    0.145         \\
                &  [0.572]         &  [0.245]         &  [0.189]         &  [1.189]         &  [0.651]         &  [0.315]         &  [0.210]         &  [1.446]         \\
1930 share of veterans&   -0.024         &    1.107\sym{***}&    0.266\sym{**} &    3.868\sym{***}&   -0.405         &    0.944\sym{***}&    0.227\sym{**} &    3.221\sym{***}\\
                &  [1.020]         &  [0.311]         &  [0.110]         &  [0.785]         &  [1.070]         &  [0.284]         &  [0.115]         &  [0.914]         \\
log 1939 average wage&    0.470\sym{***}&    0.203\sym{***}&    0.053\sym{***}&    1.021\sym{***}&    0.430\sym{***}&    0.175\sym{***}&    0.046\sym{**} &    0.910\sym{***}\\
                &  [0.055]         &  [0.033]         &  [0.018]         &  [0.124]         &  [0.067]         &  [0.045]         &  [0.020]         &  [0.165]         \\
WII war contract per capita&    0.280\sym{***}&   -0.036\sym{***}&    0.004         &    0.227\sym{***}&    0.282\sym{***}&   -0.036\sym{***}&    0.004         &    0.227\sym{***}\\
                &  [0.023]         &  [0.008]         &  [0.005]         &  [0.032]         &  [0.026]         &  [0.011]         &  [0.004]         &  [0.045]         \\
State FE (48)   &      Yes         &      Yes         &      Yes         &      Yes         &      Yes         &      Yes         &      Yes         &      Yes         \\
\hline
\(R^{2}\)       &    0.669         &    0.625         &    0.190         &    0.654         &    0.623         &    0.523         &    0.148         &    0.535         \\
Mean dependent variable&    4.658         &    0.634         &    0.140         &   -0.012         &    4.658         &    0.634         &    0.140         &   -0.012         \\
Rubin-Anderson test (p-value)&                  &                  &                  &                  &    0.000         &    0.013         &    0.000         &    0.000         \\
Observations    &     3022         &     2329         &     2329         &     2329         &     3022         &     2329         &     2329         &     2329         \\
\hline\hline
\end{longtable}
}
